GROUND ZERO GZHA MINI FIVE
HYDROGEN SERIES
Connections and functions
Feature
Operation
1
Channel 1 & 2 low level input (RCA)
To be connected to the pre-amplified output of a source unit (head unit) or of an
external electronic crossover (operation in 2-/4- and 5 channel input mode)
2
Channel 3 & 4 low level input (RCA)
To be connected to the pre-amplified output of a source unit (head unit) or of an
external electronic crossover (operation in 4- and 5-channel input mode)
3
Channel 5 low level input (RCA)
To be connected to the pre-amplified output of a source unit (head unit) or of an
external electronic crossover (operation in 5-channel mode only)
4
High level input with auto-on function
To be connected directly to the speaker wires of the head unit.
Note: In high level input mode, there is no separate input for channel 5 available. All
connected high level input channels are summed internally providing the input signal for
channel 5.
Attention! Do never use the high- and low level inputs simultaneously!
This may cause unexpected malfunction and serious damage to the amplifier.
The auto-on function of the high level input turns on the amplifier without any additional
remote connection automatically as soon as an input signal is recognized
5
Remote connector
To connect the included subwoofer level remote control unit
6
Input mode switch
To select the amount of input channels
2-channel input mode: channels 1 and 2 are used for all channels
4-channel input mode: channels 1-4 are used, channel 5 is summed from input 1-4
5-channel input mode: all input channels are used
7
Channel 1 & 2 controls
LEVEL: To adjust the input sensitivity
HPF:
To adjust the high pass cut-off frequency (10 Hz ~ 4000 Hz)
8 Channel 5 controls
LEVEL: To adjust the input sensitivity
LPF:
To adjust the low pass cut-off frequency (50 Hz ~ 250 Hz)
9
Channel 3 & 4 controls
LEVEL: To adjust the input sensitivity
HPF:
To adjust the high pass cut-off frequency (10 Hz ~ 4000 Hz)
LPF:
To adjust the low pass cut-off frequency (50 Hz ~ 4000 Hz)
X-OVER switch: To select HPF only or BPF (HPF & LPF)
10 Subwoofer speaker wire connector
To connect the subwoofer speaker wires
11 Speaker wire connector (channel 1&2)
To connect the speaker wires of channel 1 and 2
12 Speaker wire connector (channel 3&4)
To connect the speaker wires of channel 3 and 4
13 Power indicator
Lights up in operation mode
14 Protection indicator
Lights up in case of a defect or overheating
15 Power supply connector
REM
Turn on remote wire connection
GROUND
Ground connection
BATT+
+12 Volt (battery) connection
Note: When using the high level input, it is unnecessary to connect the remote wire
High level input connection
Position / color
Connection
Position / color
Connection
1 – white
channel 1 (+)
3 – green
channel 3 (+)
1 – white / black
channel 1 (-)
3 – green / black
channel 3 (-)
2 – grey
channel 2 (+)
4 – purple
channel 4 (+)
2 – grey / black
channel 2 (-)
4 – purple / black
channel 4 (-)
